I rejected it early on as for me one of the main points of a kick up system is for when you hit something unexpectedly. I thought that having to undo a bolt before the foil can kick up was not a good idea.
I shared the same view till I heard the experience that Darryl Barret gained using the T-foils on his Alpha-Omega F14. He used normal rudder pintles (with a retainer clip) and normal rudder stocks that allowed the rudders to kick-up. Basically he took a conventional rudder system and just bolted some T-foils to them. After sailing with it for a while and having them kick-up a few times he found that the T-foils would just kick-up as normal rudders would.
This lead me to the idea to just accept the drag and decelleration when they kick-up after hitting an object floating in deep water. Pretty much the initial "give" is what saves the rudder and sterns not the upswing to the horizontal. Taking a calculated risk here, which apparently isn't much of a risk afterall, I was only left with the problem of kicking them up in shallow water with a surf, i.e. when running the boat up a beach. And that is what the system does well. As you know when you'll be returning to shore you can unlock them.
When running aground in the middle of a large body of water then I just have them kick-up as if they are hitting an object in deep water. There will not be a surf there to smash your boat when you make an unintended turn or whatever. I there is then I'm a dumb fool for trying to sail through such a patch without unlocking my rudders.
That is the thinking behind the proposal.
Wouter
